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Old 03-04-2013, 09:46 PM
71fj40guy 71fj40guy is offline
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Originally Posted by F-BIRD'88 View Post
Too bad you did not take advantage of the situation and degree and advance the .450"in.460" ex camshaft in this motor.
( If you were to degree it you would find it is retarded (115in/113ex C/L's) 114LSA (retarded by 1deg)
Moving the cam to a new 107in/121ex C/L position (7degree advanced) will wake it up and make more torque in this low cr engine. as the intake valve will close sooner.
This cam was GM's origional 1969 11:1 ccompression 350-350HP L-46 cam.
As installed it is a mis match @8.5:1cr. It need to be advanced.

If the new head gasket is thicker than the old stock head gasket the compression ratio wil now be even lower.
Should have wacked some off the heads (.050") and used a felpro shim head gasket.
I would have home ported the heads too.
When I had the heads off I put it to TDC and it was already set to 6 degrees advance.
Unfortunately I ran into more delays today. Got everything put together, but when I fired her up she ran for about 20 second then died. Need to trouble shoot tomorrow and do the final dial in on the timing and valves.
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